1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef GFX_VR_SERVICE_OCULUSSESSION_H 8 #define GFX_VR_SERVICE_OCULUSSESSION_H 9 10 #include "VRSession.h" 11 12 #include "moz_external_vr.h" 13 #include "mozilla/TimeStamp.h" 14 #include "mozilla/gfx/2D.h" 15 #include "nsTArray.h" 16 #include "oculus/ovr_capi_dynamic.h" 17 #include "prlink.h" 18 #include "ShaderDefinitionsD3D11.h" // for VertexShaderConstants and PixelShaderConstants 19 20 struct ID3D11Device; 21 22 namespace mozilla { 23 namespace layers { 24 struct VertexShaderConstants; 25 struct PixelShaderConstants; 26 } // namespace layers 27 namespace gfx { 28 29 class OculusSession : public VRSession { 30 public: 31 OculusSession(); 32 virtual ~OculusSession(); 33 34 bool Initialize(mozilla::gfx::VRSystemState& aSystemState, 35 bool aDetectRuntimesOnly) override; 36 void Shutdown() override; 37 void ProcessEvents(mozilla::gfx::VRSystemState& aSystemState) override; 38 void StartFrame(mozilla::gfx::VRSystemState& aSystemState) override; 39 bool StartPresentation() override; 40 void StopPresentation() override; 41 bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer, 42 ID3D11Texture2D* aTexture) override; 43 void VibrateHaptic(uint32_t aControllerIdx, uint32_t aHapticIndex, 44 float aIntensity, float aDuration) override; 45 void StopVibrateHaptic(uint32_t aControllerIdx) override; 46 void StopAllHaptics() override; 47 48 private: 49 bool LoadOvrLib(); 50 void UnloadOvrLib(); 51 bool StartLib(ovrInitFlags aFlags); 52 void StopLib(); 53 bool StartSession(); 54 void StopSession(); 55 bool StartRendering(); 56 void StopRendering(); 57 bool CreateD3DObjects(); 58 bool CreateShaders(); 59 void DestroyShaders(); 60 void CoverTransitions(); 61 void UpdateVisibility(); 62 bool ChangeVisibility(bool bVisible); 63 bool InitState(mozilla::gfx::VRSystemState& aSystemState); 64 void UpdateStageParameters(mozilla::gfx::VRDisplayState& aState); 65 void UpdateEyeParameters(mozilla::gfx::VRSystemState& aState); 66 void UpdateHeadsetPose(mozilla::gfx::VRSystemState& aState); 67 void UpdateControllers(VRSystemState& aState); 68 void UpdateControllerInputs(VRSystemState& aState, 69 const ovrInputState& aInputState); 70 void UpdateHaptics(); 71 void EnumerateControllers(VRSystemState& aState, 72 const ovrInputState& aInputState); 73 void UpdateControllerPose(VRSystemState& aState, 74 const ovrInputState& aInputState); 75 void UpdateTelemetry(VRSystemState& aSystemState); 76 bool IsPresentationReady() const; 77 bool UpdateConstantBuffers(); 78 79 PRLibrary* mOvrLib; 80 ovrSession mSession; 81 ovrInitFlags mInitFlags; 82 ovrTextureSwapChain mTextureSet; 83 nsTArray<RefPtr<ID3D11RenderTargetView>> mRTView; 84 nsTArray<RefPtr<ID3D11Texture2D>> mTexture; 85 nsTArray<RefPtr<ID3D11ShaderResourceView>> mSRV; 86 87 ID3D11VertexShader* mQuadVS; 88 ID3D11PixelShader* mQuadPS; 89 RefPtr<ID3D11SamplerState> mLinearSamplerState; 90 layers::VertexShaderConstants mVSConstants; 91 layers::PixelShaderConstants mPSConstants; 92 RefPtr<ID3D11Buffer> mVSConstantBuffer; 93 RefPtr<ID3D11Buffer> mPSConstantBuffer; 94 RefPtr<ID3D11Buffer> mVertexBuffer; 95 RefPtr<ID3D11InputLayout> mInputLayout; 96 97 IntSize mPresentationSize; 98 ovrFovPort mFOVPort[2]; 99 100 // Most recent HMD eye poses, from start of frame 101 ovrPosef mFrameStartPose[2]; 102 103 float mRemainingVibrateTime[2]; 104 float mHapticPulseIntensity[2]; 105 TimeStamp mLastHapticUpdate; 106 107 // The timestamp of the last ending presentation 108 TimeStamp mLastPresentationEnd; 109 bool mIsPresenting; 110 }; 111 112 } // namespace gfx 113 } // namespace mozilla 114 115 #endif // GFX_VR_SERVICE_OCULUSSESSION_H 116